1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <deque>
10
11// deque()
12// noexcept(is_nothrow_default_constructible<allocator_type>::value);
13
14// This tests a conforming extension
15
16// UNSUPPORTED: c++03
17
18#include <deque>
19#include <cassert>
20
21#include "test_macros.h"
22#include "MoveOnly.h"
23#include "test_allocator.h"
24
25template <class T>
26struct some_alloc {
27 typedef T value_type;
28 some_alloc(const some_alloc&);
29 void allocate(std::size_t);
30};
31
32int main(int, char**) {
33#if defined(_LIBCPP_VERSION)
34 {
35 typedef std::deque<MoveOnly> C;
36 static_assert(std::is_nothrow_default_constructible<C>::value, "");
37 }
38 {
39 typedef std::deque<MoveOnly, test_allocator<MoveOnly>> C;
40 static_assert(std::is_nothrow_default_constructible<C>::value, "");
41 }
42#endif // _LIBCPP_VERSION
43 {
44 typedef std::deque<MoveOnly, other_allocator<MoveOnly>> C;
45 static_assert(!std::is_nothrow_default_constructible<C>::value, "");
46 }
47 {
48 typedef std::deque<MoveOnly, some_alloc<MoveOnly>> C;
49 static_assert(!std::is_nothrow_default_constructible<C>::value, "");
50 }
51
52 return 0;
53}
54

source code of libcxx/test/std/containers/sequences/deque/deque.cons/default_noexcept.pass.cpp